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Showing papers in "Materials Research Bulletin in 2005"


Journal ArticleDOI
TL;DR: In this article, Zn-substituted Ca hydroxyapatites were synthesized by precipitation method under the specific conditions (pH 8, 90°C) and their structural properties were investigated.

307 citations


Journal ArticleDOI
TL;DR: The combustion synthesis technique using glycine as fuel and aluminum nitrate as an oxidizer is able to produce alumina powders as mentioned in this paper, and the results showed that as the fuel-to-oxidant ratio increases, the amount of gases produced and adiabatic flame temperatures also increases.

167 citations


Journal ArticleDOI
TL;DR: In this article, a simple method to prepare hydrotalcites involving both urea hydrolysis and hydrothermal synthetic conditions was reported, which achieved a ratio of 1:1 and 2:1.

163 citations


Journal ArticleDOI
TL;DR: In this article, the authors used MCM-41 materials modified by organic aminopropyl groups and have been successfully prepared through solvothermal process and have used as drug-controlled delivery system of aspirin.

137 citations


Journal ArticleDOI
TL;DR: In this article, the authors reported the synthesis of magnetoelectric bismuth ferrite by a ferrioxalate precursor method using X-ray diffractometry, thermogravimetry and differential thermal analysis, Fourier transformation infrared spectroscopy and scanning electron microscopy.

130 citations


Journal ArticleDOI
TL;DR: Aluminum oxide nanoparticles were prepared by the hydrolysis of aluminum oxide alkoxides followed by calcinations, in the presence of surface stabilizing agents, such as Na(AOT) molecules as mentioned in this paper.

114 citations


Journal ArticleDOI
TL;DR: In this article, a seed-mediated approach for rapid synthesis of high quality alloyed quantum dots (CdSe-CdS) in aqueous phase by microwave irradiation with controllable temperature was presented.

107 citations


Journal ArticleDOI
TL;DR: In this paper, the effect of thermal annealing in different ambients on the structural, electrical and optical properties of the sol-gel derived ZnO thin films are studied and the results show that the annealed films with wurtzite structure are randomly oriented and the change in carrier concentration is discussed with respect to the removal of adsorbed oxygen from the grain boundaries.

105 citations


Journal ArticleDOI
TL;DR: In this article, a polypyrrole Th(IV) phosphate composite type of cation-exchanger was developed by using this composite for the determination of Pb(II) ions in solutions.

101 citations


Journal ArticleDOI
TL;DR: In this article, three oxygen content determination methods (iodometric titration, gas volumetric analysis and thermogravimetric hydrogen reduction) have been evaluated for the case of rare earth cobaltates.

98 citations


Journal ArticleDOI
TL;DR: In this paper, Nanocrystalline ceria (CeO 2 ) particles have been successfully prepared by microwave-assisted heating technique from an aqueous solution containing ammonium Ce(IV) nitrate and sodium hydroxide.

Journal ArticleDOI
TL;DR: In this article, the sintering behavior, microstructure and microwave dielectric properties of complex pyrophosphate compounds AMP 2 O 7 (A, Ca, Sr; M = Zn, Cu) were investigated.

Journal ArticleDOI
TL;DR: In this article, a simple microwave-assisted solution approach using an ionic liquid 1-n-butyl-3-methyl imidazolium tetrafluoroborate was used to synthesize cobalt oxalate nanorods.

Journal ArticleDOI
Jide Wang1, Yahong Xie1, Zheng-Fang Zhang1, Rui-Quan Liu1, Zhi-Jie Li1 
TL;DR: In this paper, the conductivity of sintered complex oxides as solid electrolyte was measured in various atmospheres, and ammonia was synthesized from nitrogen and hydrogen at atmospheric pressure in the solid states proton conducting cell reactor by electrochemical methods.

Journal ArticleDOI
TL;DR: In this paper, a fine, monophasic silicon carbide powder has been synthesized by direct solid-state reaction of its constituents namely silicon and carbon in a 2.45 GHz microwave field.

Journal ArticleDOI
TL;DR: In this article, a nano-sized FeFe 2 O 4 ferrite powder for local thermal coagulation therapy was synthesized by a reverse coprecipitation method and the crystal diameter increased with an increase in the synthesized temperature for both methods.

Journal ArticleDOI
TL;DR: In this paper, the effect of water on the thermal expansion behavior of a negative thermal expansion system is discussed. But the authors focus on the non-negative thermal expansion of a trihydrate composition whose X-ray diffraction pattern can be indexed to an orthorhombic unit cell.

Journal ArticleDOI
TL;DR: In this paper, three high temperature structural phase transitions have been identified in the perovskite-structured phase SrSnO3 using differential scanning calorimetry and dilatometry, and have subsequently been structurally characterised using high-resolution neutron powder diffraction.

Journal ArticleDOI
TL;DR: In this paper, the luminescence properties of Eu 3+ and Tb 3+ activated SrGdGa 3 O 7 phosphors were investigated and the dependence of photoluminescence intensity on the Eu3+ and tb3+ concentration were also studied in detail.

Journal ArticleDOI
TL;DR: In this article, a modified citrate complex method assisted by microwave irradiation was used to synthesize BaMoO 4 powders, which have scheelite type structure, and were successfully synthesized at low temperatures by a modified Citrate Complex method.

Journal ArticleDOI
TL;DR: In this article, Europium doped zirconia (ZrO{sub 2}:Eu{sup 3+}) powder phosphors consisting of spherical, dense and submicrometer size particles were successfully synthesized by a spray drying process followed by a post annealing treatment process.

Journal ArticleDOI
TL;DR: The structural and magnetic properties of the perovskite type compound LaFe0.5Cr 0.5O3 have been studied by temperature dependent neutron powder diffraction and magnetization measurements as discussed by the authors.

Journal ArticleDOI
TL;DR: In this paper, the synthesis of rutile titanium dioxide from an aqueous titanium tetrachloride solution under microwave irradiation in the reaction time range of 5-120 min.

Journal ArticleDOI
Xingcai Wu1, Yourong Tao1, Lin Dong1, Zhihe Wang1, Zheng Hu1 
TL;DR: In this paper, large-scale VO 2 nanowires have been synthesized by two-step method, and the precursors have been sealed in quartz tube in vacuum and annealed to form VO 2 wires at 570°C.

Journal ArticleDOI
Zhi Yang1, Hui Xu1, Yan-Li Shi1, Mengke Li1, Yi Huang1, Hu-Lin Li1 
TL;DR: In this article, the microhardness and corrosion behavior of the composite coatings were investigated using electrochemical workstation system and the mechanism of improvement of the electrochemical properties of electroless composite coating was also discussed.

Journal ArticleDOI
TL;DR: Transparent La2Hf2O7 (LHO) ceramics were successfully fabricated from combustion-synthesized powders as discussed by the authors, using glycine or EDTA as a fuel.

Journal ArticleDOI
TL;DR: LiCoPO{sub 4] exhibits a discharge plateau at 4.7 V with an initial discharge capacity of 125 mAh/g and on cycling capacity falls as discussed by the authors, and the capacity retention is improved by manganese substitution.

Journal ArticleDOI
TL;DR: In this paper, a series of pure spinel ferrites have been synthesized successfully using a novel route through calcination of tailored hydrotalcite-like layered double hydroxide molecular precursors of the type [(Ni+Zn)1−−x−−yFey2+Fex3+(OH)2]x+(SO42−)x/2·mH2O).

Journal ArticleDOI
TL;DR: In this paper, a simple chemical route was developed for the deposition of ZnO film from aqueous solution, integrating the merits of successive ionic layer adsorption and reaction and chemical bath deposition.

Journal ArticleDOI
TL;DR: In this paper, the structure, phase evolution and morphology of YAG precursor and the sintered powders were studied by means of IR, TG/DTA, XRD, TEM methods.